The novel palladium nanoparticles (Pd@POPs) were successfully prepared with controllable sizes and dispersity through the introduction of H₂PdCl₄ into urea-linked porous organic polymers (POPs) in an aqueous environment followed by reducing Pd(II) to Pd(0) by NaBH₄. The newly prepared Pd@POPs were thoroughly characterized by FT-IR, ICP-AES, BET, XRD, SEM and TEM. Furthermore, the catalytic reactivities of this novel Pd@POPs were investigated via Heck, Suzuki-Miyaura cross-coupling reaction and nitroarene reduction, and they exhibited superior catalytic performances in all these three reactions, producing the corresponding products in up to quantitative yields. Additionally, the Pd@POPs had excellent recyclability in both Heck and Suzuki-Miyaura cross-coupling reactions with the repeating time up to four times and ten times, respectively, along with no obvious decrease of catalytic reactivities.

通过在水性环境中将H ₂ PdCl ₄引入尿素连接的多孔有机聚合物 (POPs) 中，然后将 Pd(II) 还原为 Pd(0 ) 由 NaBH ₄. 新制备的 Pd@POPs 通过 FT-IR、ICP-AES、BET、XRD、SEM 和 TEM 进行了彻底的表征。此外，通过 Heck、Suzuki-Miyaura 交叉偶联反应和硝基芳烃还原研究了这种新型 Pd@POPs 的催化反应性，它们在所有这三个反应中都表现出优异的催化性能，产生了相应的产品，产量高达定量。此外，Pd@POPs 在 Heck 和 Suzuki-Miyaura 交叉偶联反应中均具有优异的可回收性，重复时间分别可达 4 次和 10 次，催化反应活性没有明显降低。